If both men finish in the top two, as expected, their battle will continue to the Nov. 6 general election under the state's new election system, which abolished party primaries for congressional, state Senate and state Assembly races.

The other candidates on the ballot were Republicans Mark Reed, Susan Shelley and Navraj Singh; Democrat Vince Gilmore; and Green Party member Michael W. Powelson.

Berman, 71, started gearing up for the race later than Sherman, 56, whose current district overlaps more than half of the new one, making the younger congressman familiar to more voters. But Berman spent more money on political mail and cable TV ads and tried to appeal to Republican voters as well as Democrats and nonpartisans.